package com.grapecc.springcloud.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

/**
 * @author 卖糖的兜兜
 * @version 1.0.0
 * @ClassName PaymentService.java
 * @Description TODO
 * @createTime 2022年02月12日 23:40:00
 */
@Service
public class PaymentService {
    /**
     *
     * @param id
     * @return
     */
    public  String payment_oK(Integer id){
        return  "线程池:"+Thread.currentThread().getName()+"id："+id;
    }

    /**
     *
     * @param id
     * 注解三秒内 调用内方法 超过则调用payment_timeoutHandler 兜底
     * @return
     */
    @HystrixCommand(fallbackMethod = "payment_timeoutHandler",commandProperties = {
            @HystrixProperty(name="execution.isolation.thread.timeoutInMilliseconds",value="5000")
    })
    public  String payment_timeout(Integer id){
        try {
            int number = 3;
            TimeUnit.SECONDS.sleep(number);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
//        int age = 10 /0;
        return  "线程池:"+Thread.currentThread().getName()+"payment_timeout_id："+id+"耗时时间为3min";
    }
    public String payment_timeoutHandler(Integer id){
        return  "线程池:"+Thread.currentThread().getName()+"payment_timeoutHandler_id："+id+"耗时时间为超过5min";
    }
    //=====服务熔断
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback",commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled",value = "true"),// 是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold",value = "10"),// 请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds",value = "10000"), // 时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage",value = "60"),// 失败率达到多少后跳闸
    })
    public String paymentCircuitBreaker(Integer id)
    {
        if(id < 0)
        {
            throw new RuntimeException("******id 不能负数");
        }
        String serialNumber = IdUtil.simpleUUID();

        return Thread.currentThread().getName()+"\t"+"调用成功，流水号: " + serialNumber;
    }
    public String paymentCircuitBreaker_fallback(Integer id)
    {
        return "id 不能负数，请稍后再试，/(ㄒoㄒ)/~~   id: " +id;
    }
}
